Toshimaen としまえん Amusement Parks / Koenji

A theme park in western Tokyo with more than 30 different attractions ranging from extremely thrilling roller coasters to kiddie rides. A water park opens in the summer, featuring six different swimming zones including a popular wave pool and a lazy river. During summer 2010, the pools will be open on July 3 and 4, 10 and 11, and then everyday from July 17 - August 31. After that, they will open one last time on September 4 and 5.

Note that Toshimaen is strict about tattoos: those with visible ink are not allowed in the park, and tattooed patrons spotted inside the park will be asked to leave. No exceptions are given, and even temporary tattoos are banned.